The Issue:
WF1 (Ops Organizer + AP Invoice Capture) uses a Google Sheets Trigger node set to poll “Every Minute” watching for new rows in the “Ops Inbox” tab. The workflow is published (green dot) on n8n Cloud v2.13.3.
When I add a new row to the Google Sheet, the trigger does NOT fire automatically. It only works when I manually click “Fetch Test Event” or “Execute Workflow” in the editor.
Root Cause (most likely):
The Google Sheets Trigger node uses a credential called “Google Sheets Trigger OAuth2 API” while all other Google Sheets nodes in the workflow use “n8n.cloud Google Sheets Integration” (Managed OAuth2). These are two different credential types in n8n — they cannot be shared. If the trigger credential was authenticated with a different Google account, or if the OAuth token expired silently, the trigger has no access to the spreadsheet and fails without any error message.
What I’ve Tried:
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Setting poll time to “Every Minute”
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Reconnecting the OAuth2 credential
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Publishing the workflow (green dot confirmed)
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Deleting and recreating the trigger node
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The trigger credential only offers “Google Sheets Trigger OAuth2 API” — I cannot select the working “n8n.cloud Google Sheets Integration” credential
What Works:
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Manual execution (Execute Workflow + Fetch Test Event) works perfectly
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All downstream nodes (Claude AI extraction, PO matching, Google Sheets write, Payment Ledger) work correctly
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The “n8n.cloud Google Sheets Integration” credential works fine for reading and writing to
Google Sheets in other nodes
What I Need: The workflow to automatically detect new rows in the Ops Inbox tab and process them without manual intervention.
